CN220325872U - Emergency circuit for illumination after fuse blowing - Google Patents
Emergency circuit for illumination after fuse blowing Download PDFInfo
- Publication number
- CN220325872U CN220325872U CN202321786461.7U CN202321786461U CN220325872U CN 220325872 U CN220325872 U CN 220325872U CN 202321786461 U CN202321786461 U CN 202321786461U CN 220325872 U CN220325872 U CN 220325872U
- Authority
- CN
- China
- Prior art keywords
- module
- emergency
- resistor
- fuse
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005286 illumination Methods 0.000 title claims description 33
- 238000007664 blowing Methods 0.000 title description 2
- 239000003990 capacitor Substances 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 239000005083 Zinc sulfide Substances 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 3
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model relates to the technical field of lighting circuits, in particular to an emergency circuit for lighting after a fuse is fused, which comprises a power connection unit, a switching unit and a lighting unit. In the utility model, when the commercial power is not interrupted but the fuse is fused, the power supply module is lightened, and the standby battery supplies power to the standby lighting module through the emergency module; when the mains supply is interrupted, the standby module supplies power to the standby lighting module through the emergency module, and the power supply module cannot be lightened, namely the standby lighting module is judged to be a mains supply problem or a fuse problem through the state of the power supply module when working.
Description
Technical Field
The utility model relates to the technical field of lighting circuits, in particular to an emergency circuit for lighting after a fuse is fused.
Background
The emergency lighting is a lighting facility which can effectively illuminate and display an evacuation channel or can continuously illuminate without discontinuous work when a normal lighting power supply fails, and is divided into fire emergency lighting and non-fire emergency lighting, and is widely used in public places and places without discontinuous illumination.
The utility model as in CN104125676B relates to an emergency lighting circuit comprising a first diode, a first triode, a second triode, a MOS transistor, a dc power supply and a back-up light source, wherein: the positive electrode of the first diode is connected with a charging power supply, and the charging power supply provides charging voltage obtained by transforming and rectifying external alternating current for the emergency lighting circuit; the base electrode of the first triode is connected with the charging power supply, the emitter electrode of the first triode is grounded, and the collector electrode of the first triode is connected with the base electrode of the second triode; the emitter of the second triode is connected with the grid electrode of the MOS tube, and the collector of the second triode is grounded; the source electrode of the MOS tube is connected with one end of the standby light source, and the drain electrode of the MOS tube is connected with the positive electrode of the direct current power supply; the drain electrode, the source electrode and the standby light source of the MOS tube are sequentially connected in series between the anode and the cathode of the direct current power supply; and the negative electrode of the direct current power supply is grounded. The utility model can automatically switch to the standby light source to provide illumination when the commercial power is cut off, and the standby light source is automatically turned off to restore to normal illumination after the commercial power is restored, however, when the fuse is fused due to overload of the circuit, the circuit can also start the standby light source, so that when the standby light source is started, people cannot judge whether the circuit failure cause is the commercial power problem or the fuse problem, and the circuit cannot be quickly maintained.
In order to avoid the interruption of illumination and simultaneously facilitate the confirmation of the cause of circuit faults, an emergency circuit for illumination after the fuse is fused is provided.
Disclosure of Invention
The utility model aims to provide an emergency circuit for illumination after a fuse is blown, so as to solve the problems in the background technology.
In order to achieve the above object, the utility model provides an emergency circuit for illumination after a fuse is blown, comprising an electricity connection unit, a switching unit and an illumination unit, wherein the electricity connection unit comprises a conversion module and an emergency module, the switching unit comprises a standby battery and an emergency module, the illumination unit comprises a main illumination module and a standby illumination module, the conversion module is connected with the power supply module, the power supply module is connected with the emergency module and the main illumination module, the standby battery is connected with the emergency module in a bidirectional manner, and the emergency module is connected with the standby illumination module;
the conversion module supplies power for the emergency module and the main lighting module through the power supply module, and the emergency module supplies power for the standby battery and the standby lighting module.
As a further improvement of the technical solution, the power supply module comprises an alarm circuit comprising a fuse FU arranged on the power supply bus,
one end of the fuse FU is connected with a resistor R1 in parallel connection with a base electrode of a triode VT1, the other end of the fuse FU is connected with a light-emitting diode LED1, the resistor R1 is connected with a collector electrode of the triode VT1, an emitter electrode of the triode VT1 is connected with a diode VD1, the diode VD1 is connected with a resistor R2, and the resistor R2 is connected with the other end of the light-emitting diode LED 1.
As a further development of the solution, the emergency module comprises a rectifier bridge BG,
the rectifier bridge BG is connected with the capacitor C11 in parallel with the resistor R11, the other end of the rectifier bridge BG is connected with the battery pack BT, the emitting electrode of the triode VT3 and the diode VD2, and the rectifier bridge BG is connected with the capacitor C12;
the capacitor C11 is connected with the other end of the resistor R11, the other end of the diode VD2 is connected with the resistor R13 in parallel, the resistor R13 is connected with the resistor R12 and connected with the base electrode of the triode VT2 in parallel, the resistor R12 is connected with the lamp EL and connected with the other end of the battery pack BT, the lamp EL is connected with the collector electrode of the triode VT2 and connected with the collector electrode of the triode VT3, and the base electrode of the triode VT3 is connected with the emitter electrode of the triode VT 2.
As a further improvement of the technical scheme, the capacitor C12 is connected with the relay K1 in parallel, the battery pack BT is connected with the contact 5 of the switch K1-1, the contact 4 of the switch K1-1 is connected with the lamp EL, the resistor R13 is connected with the contact 1 of the switch K1-2, the contact 2 of the switch K1-2 is connected with the resistor R12, the contact 3 of the switch K1-2 is connected with the photoresistor RG, and the photoresistor RG is connected with the diode VD2.
As a further improvement of the technical scheme, the photoresistor RG is a zinc sulfide photoresistor.
Compared with the prior art, the utility model has the beneficial effects that:
in the emergency circuit for illumination after the fuse is fused, when the commercial power is not interrupted but the fuse is fused, the power supply module is lightened, and the standby battery supplies power to the standby illumination module through the emergency module; when the mains supply is interrupted, the standby module supplies power to the standby lighting module through the emergency module, and the power supply module cannot be lightened, namely the standby lighting module is judged to be a mains supply problem or a fuse problem through the state of the power supply module when working.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a diagram of an alarm circuit of the present utility model;
fig. 3 is a circuit diagram of a switching unit according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1-3, the present embodiment provides an emergency circuit for illumination after a fuse is blown, which includes a power connection unit, a switching unit and an illumination unit, wherein the power connection unit includes a conversion module and a power supply module, the switching unit includes a standby battery and an emergency module, the illumination unit includes a main illumination module and a standby illumination module, the conversion module is connected with the power supply module, the power supply module is connected with the emergency module and the main illumination module, the standby battery is connected with the emergency module in a bidirectional manner, and the emergency module is connected with the standby illumination module;
the conversion module supplies power for the emergency module and the main lighting module through the power supply module, and the emergency module supplies power for the standby battery and the standby lighting module.
Principle of: when the commercial power is not interrupted and the fuse is normal, the conversion module converts the commercial power and supplies power to the power supply module, and the power supply module supplies power to the standby battery through the emergency module and supplies power to the main lighting module; when the commercial power is not interrupted but the fuse is fused, the conversion module supplies power to the power supply module, the power supply module is lightened, the power supply module interrupts the power supply of the emergency module and the main lighting module, and the standby battery supplies power to the standby lighting module through the emergency module; when the mains supply is interrupted, the standby module supplies power to the standby lighting module through the emergency module, and the power supply module cannot be lightened, namely the standby lighting module is judged to be a mains supply problem or a fuse problem through the state of the power supply module when working.
In order to indicate the operating state of the fuse, the power supply module comprises an alarm circuit comprising a fuse FU arranged on the power supply bus,
one end of the fuse FU is connected with the resistor R1 in parallel with the base electrode of the triode VT1, the other end of the fuse FU is connected with the light-emitting diode LED1, the resistor R1 is connected with the collector electrode of the triode VT1, the emitter electrode of the triode VT1 is connected with the diode VD1, the diode VD1 is connected with the resistor R2, and the resistor R2 is connected with the other end of the light-emitting diode LED 1.
In the circuit, the current of the power supply bus supplies power to the emergency module and the main lighting module through the fuse FU, when the circuit works normally, the base electrode of the triode VT1 is reversely biased and is in a cut-off state, when the fuse FU is overloaded and fused, the triode VT1 is turned from the reverse bias state to the forward bias state, the triode VT1 is conducted, and the light emitting diode LED1 is lighted.
In order to achieve uninterrupted illumination, the emergency module comprises a rectifier bridge BG,
the rectifier bridge BG is connected with the capacitor C11 in parallel with the resistor R11, the other end of the rectifier bridge BG is connected with the battery pack BT, the emitter of the triode VT3 and the diode VD2, and the rectifier bridge BG is connected with the capacitor C12;
the capacitor C11 is connected with the other end of the resistor R11, the other end of the diode VD2 and connected with the resistor R13 in parallel, the resistor R13 is connected with the resistor R12 and connected with the base electrode of the triode VT2, the resistor R12 is connected with the lamp EL and connected with the other end of the battery pack BT, the lamp EL is connected with the collector electrode of the triode VT2 and connected with the collector electrode of the triode VT3, and the base electrode of the triode VT3 is connected with the emitter electrode of the triode VT 2.
In the circuit, the battery pack BT is a standby battery, the lamp EL is a standby lighting module, the current input by the power supply module is filtered by the rectifier bridge BG and the capacitor C12 to charge the battery pack BT, when the power supply module stops supplying power due to the fact that the fuse is fused or the mains supply is interrupted, the battery pack BT supplies power, and after the voltage is divided by the resistor R12, the triodes VT2 and VT3 are conducted, so that the lamp EL is lighted.
Considering that lamplight illumination is not needed in daytime, the capacitor C12 is connected with the relay K1 in parallel, the battery pack BT is connected with the contact 5 of the switch K1-1, the contact 4 of the switch K1-1 is connected with the lamp EL, the resistor R13 is connected with the contact 1 of the switch K1-2, the contact 2 of the switch K1-2 is connected with the resistor R12, the contact 3 of the switch K1-2 is connected with the photoresistor RG, and the photoresistor RG is connected with the diode VD2.
By adding the relay K1 and the photoresistor RG, the relay K1 is powered on during daytime, the contacts 4 and 5 of the movable switch K1-1 are disconnected, the contacts 1 and 3 of the movable switch K1-2 are attracted, the resistance value of the relatively strong light obtained on the photoresistor RG is relatively small, when the power supply module stops supplying power, the current provided by the battery pack BT can not be conducted to the triodes VT2 and VT3 through the voltage drop from the resistor R12 to the photoresistor RG, and the lamp EL can not be lighted; since the light obtained by the photoresistor RG is weak at night, the resistance value thereof increases, and the lamp EL can be lighted by the current supplied from the battery BT.
The photoresistor RG is a zinc sulfide photoresistor, and has high sensitivity and good stability
When the emergency circuit for illumination after the fuse is fused is particularly used, when the commercial power is not interrupted and the fuse is normal, the conversion module converts the commercial power and then supplies power to the power supply module, and the power supply module supplies power to the standby battery through the emergency module and supplies power to the main illumination module; when the commercial power is not interrupted but the fuse is fused, the conversion module supplies power to the power supply module, the triode VT1 of the warning circuit in the power supply module is turned into a forward-biased state from reverse bias, the triode VT1 is conducted, the light-emitting diode LED1 is lightened, the power supply module interrupts the power supply of the emergency module and the main lighting module, when the fuse is fused or the commercial power is interrupted to cause the power supply module to stop supplying power, the battery pack BT supplies power, after the resistor R12 is used for dividing the voltage, the triodes VT2 and VT3 are conducted, so that the lamp EL is lightened and the power supply module cannot be lightened, namely, the problem of the commercial power or the fuse is judged through the state of the power supply module when the standby lighting module works.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. An emergency circuit for illumination after fusing a fuse, which is characterized in that: the power supply system comprises a power connection unit, a switching unit and a lighting unit, wherein the power connection unit comprises a conversion module and a power supply module, the switching unit comprises a standby battery and an emergency module, the lighting unit comprises a main lighting module and a standby lighting module, the conversion module is connected with the power supply module, the power supply module is connected with the emergency module and the main lighting module, the standby battery is in bidirectional connection with the emergency module, and the emergency module is connected with the standby lighting module;
the conversion module supplies power for the emergency module and the main lighting module through the power supply module, and the emergency module supplies power for the standby battery and the standby lighting module.
2. The emergency circuit for illumination after a fuse is blown according to claim 1, wherein: the power supply module comprises an alarm circuit comprising a fuse FU arranged on a power supply bus,
one end of the fuse FU is connected with a resistor R1 in parallel connection with a base electrode of a triode VT1, the other end of the fuse FU is connected with a light-emitting diode LED1, the resistor R1 is connected with a collector electrode of the triode VT1, an emitter electrode of the triode VT1 is connected with a diode VD1, the diode VD1 is connected with a resistor R2, and the resistor R2 is connected with the other end of the light-emitting diode LED 1.
3. The emergency circuit for illumination after a fuse is blown according to claim 1, wherein: the emergency module comprises a rectifier bridge BG,
the rectifier bridge BG is connected with the capacitor C11 in parallel with the resistor R11, the other end of the rectifier bridge BG is connected with the battery pack BT, the emitting electrode of the triode VT3 and the diode VD2, and the rectifier bridge BG is connected with the capacitor C12;
the capacitor C11 is connected with the other end of the resistor R11, the other end of the diode VD2 is connected with the resistor R13 in parallel, the resistor R13 is connected with the resistor R12 and connected with the base electrode of the triode VT2 in parallel, the resistor R12 is connected with the lamp EL and connected with the other end of the battery pack BT, the lamp EL is connected with the collector electrode of the triode VT2 and connected with the collector electrode of the triode VT3, and the base electrode of the triode VT3 is connected with the emitter electrode of the triode VT 2.
4. The emergency circuit for illumination after a fuse is blown according to claim 3, wherein: the capacitor C12 is connected with the relay K1 in parallel, the battery pack BT is connected with the contact 5 of the switch K1-1, the contact 4 of the switch K1-1 is connected with the lamp EL, the resistor R13 is connected with the contact 1 of the switch K1-2, the contact 2 of the switch K1-2 is connected with the resistor R12, the contact 3 of the switch K1-2 is connected with the photoresistor RG, and the photoresistor RG is connected with the diode VD2.
5. The emergency circuit for illumination after a fuse is blown according to claim 4, wherein: the photoresistor RG is a zinc sulfide photoresistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321786461.7U CN220325872U (en) | 2023-07-10 | 2023-07-10 | Emergency circuit for illumination after fuse blowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321786461.7U CN220325872U (en) | 2023-07-10 | 2023-07-10 | Emergency circuit for illumination after fuse blowing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220325872U true CN220325872U (en) | 2024-01-09 |
Family
ID=89410395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321786461.7U Active CN220325872U (en) | 2023-07-10 | 2023-07-10 | Emergency circuit for illumination after fuse blowing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220325872U (en) |
-
2023
- 2023-07-10 CN CN202321786461.7U patent/CN220325872U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102438353B (en) | Control circuit of double-light-source intelligent control type illumination lamp | |
| CN2899378Y (en) | Emergent illuminator by intelligent-controlled chip | |
| KR100715282B1 (en) | Charging control apparatus of battery for emergency lamp | |
| CN206181430U (en) | Emergent LED lamp of intelligence | |
| CN220325872U (en) | Emergency circuit for illumination after fuse blowing | |
| JP5914728B2 (en) | Lighting device and lighting system | |
| CN201081132Y (en) | Fire-fighting emergency marker lamp | |
| CN203352860U (en) | Intelligent identification power supply during power grid blackout or artificial-switching power-off | |
| CN2753092Y (en) | LED acousto-optic control emergency corridor lamp | |
| CN102325403A (en) | Touch time-delay switch made from digital circuit CD4013 | |
| CN210137473U (en) | Driving circuit of emergency lighting lamp | |
| CN108235528B (en) | Intelligent fire emergency lighting main power supply line three-wire-to-two-wire converter | |
| CN2242390Y (en) | Lighting device with no-interruption function | |
| CN204272431U (en) | LED emergency lighting circuit for lamp | |
| CN109526097B (en) | Intelligent LED desk lamp | |
| CN203167355U (en) | LED driver preventing LED from flickering | |
| CN111693903A (en) | Battery collection wire harness error-proofing detection circuit and wire harness detector | |
| CN202178902U (en) | Touch time-delay switch made of digital circuit CD4013 | |
| CN205356750U (en) | A electron fuse circuit for LED lamp | |
| CN210629186U (en) | Uninterrupted and safe voltage-powered lighting circuit | |
| CN203166590U (en) | An energy-saving fire-fighting emergency lamp | |
| CN220235013U (en) | Emergency circuit and lamp | |
| CN201450645U (en) | Fire emergency illuminating lamp | |
| CN219960877U (en) | Flashlight driving circuit | |
| CN216564620U (en) | Emergency uninterrupted power supply circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |